18.75 MVA Cooper Fais Fab Transformers-66/11.55 kV|Australia 2023

01 General

1.1 Project Background

18.75 MVA OLTC kauj ruam down power transformer tau xa mus rau Australia nyob rau hauv 2023. Lub zog ntawm lub transformer yog 18.75 MVA nrog ONAN / ONAF txias. Thawj qhov hluav taws xob yog 66 kV nrog ± 8 * 1.25% tapping ntau yam (OLTC), qhov nruab nrab voltage yog 11.55 kV, lawv tsim ib pawg vector ntawm Dyn1.

Qhov no 18.75 MVA, 66 kV fais fab hloov pauv ua ke nrog cov thev naus laus zis zoo nrog cov qauv tsim tshwj xeeb, txhawm rau ua kom tau raws li ntau yam kev xav tau ntawm lub zog loj. Nruab nrog On -Load Tap Changer (OLTC), nws tso cai rau kev tswj hwm qhov hluav taws xob tsis zoo, ua kom muaj kev ruaj ntseg thiab ua haujlwm ntawm daim phiaj hluav taws xob. Kev sib koom ua ke ntawm Buchholz relay pab txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm Lub thawv marshalling kev sib koom ua ke txhawb nqa yooj yim txuas thiab kev tswj hwm kev tswj hwm, txhim kho kev teeb tsa thiab kev saib xyuas zoo heev.

Tsim los ntawm cov khoom siv zoo -cov ntaub ntawv zoo thiab cov kws tshaj lij craftsmanship, transformer tsim los ntawm SCOTECH muaj peev xwm tiv taus qhov chaw ua haujlwm hnyav thiab tsim nyog siv rau hauv cov chaw tsim hluav taws xob, cov khoom siv hluav taws xob, thiab kab sib kis.

1.2 Technical Specification

18.75 MVA OLTC nqis zog transformer specifications hom thiab cov ntaub ntawv ntawv

1.3 Cov duab kos

18.75 MVA OLTC nqis zog transformer daim duab kos duab thiab loj.

02 Kev tsim khoom

2.1 Core

Cov tub ntxhais hlau ntawm peb lub zog hloov hluav taws xob yog qhov tseem ceeb rau kev ua kom zoo dua qub thiab ua haujlwm zoo. Peb xaiv siab -permeability silicon steel los xij, sim nruj me ntsis kom txo lub zog poob thaum ua kom qhov sib nqus flux ceev. Muab ntim rau hauv cov ntaub ntawv zoo insulating, cov tub ntxhais ua kom ntev - lub sij hawm cia siab.

Peb cov txheej txheem tsim khoom siab heev, suav nrog precision stamping thiab laser txiav, txhim kho cov khoom siv tau zoo thiab txo cov kev sib dhos tsis raug. Cov qauv laminated ho txo ​​qis eddy tam sim no poob, txhim kho lub zog hloov dua siab tshiab.

2.2 Cua txias

Peb cov transformer windings yog cov kws tshaj lij tsim los daws cov kev xav tau hluav taws xob thiab cov neeg kho tshuab. Lub siab -voltage (HV) windings feature entangled los yog puab - tshuaj ntsuam configurations, kom ntseeg tau tias robust theem rwb thaiv tsev thiab dielectric zog rau txhim khu kev qha kev khiav hauj lwm.

Rau nruab nrab-voltage (MV) thiab qis-voltage (LV) daim ntawv thov, peb siv high-lub zog lossis transposed conductors uas txhim kho hluav taws xob kev ua tau zoo thiab pab kom txias txias, txo qhov kub thiab txias. Qhov kev tsim no txhim kho cov windings muaj peev xwm tiv taus luv luv - cov xwm txheej hauv Circuit Court, ua kom muaj kev nyab xeeb thiab kav ntev.

Peb siv ntau yam kev tsim kho, xws li interleaved, shielded disk, helical, thiab txheej txheej tsim, tailored rau txhua transformer qhov voltage thiab impulse ratings. Peb txoj kev mob siab rau precision hauv coil winding guarantees kev ua tau zoo, kev cia siab, thiab kev pab lub neej ntev, ua rau peb cov transformers zoo tagnrho rau kev thov.

2.3 Tank

Transformer tank yog nruab nrog siab -cov roj tank zoo ua los ntawm corrosion-cov hlau tsis muaj zog, kho nrog cov txheej txheem tiv thaiv nruj heev- txhawm rau ua kom muaj zog thiab kev ntseeg siab hauv ntau qhov chaw. Cov roj tank siv cov txheej txheem vuam zoo heev los lav kev sib koom ua ke thiab kev sib khi, tiv thaiv cov roj to. Kev kho kom zoo nkauj saum npoo txhim kho ob qho tib si corrosion kuj thiab zoo nkauj zoo nkauj. Kev tsim sab hauv yog optimized los txhawb cov roj ntws zoo, txhim kho kev sib hloov cua sov thiab kev ua haujlwm txias, uas ua rau kev ua haujlwm zoo ntawm transformer.

2.4 Kev sib dhos zaum kawg

Cov khoom tseem ceeb xws li cov tub ntxhais, windings, thiab cov roj tank tau kuaj xyuas ua ntej sib dhos, siv cov cuab yeej siv siab -precision positioning technology los txhim kho cov yam ntxwv ntawm electromagnetic thiab xyuas kom zoo thiab ruaj khov. Txhua qhov kev sib txuas hluav taws xob thiab cov khoom siv kho tshuab ua raws li cov qauv kev lag luam, txhim kho kev nyab xeeb thiab kav ntev. Lub tshuab cua txias yog ua tib zoo tsim los xyuas kom meej cov cua sov kom zoo nyob rau hauv ntau yam kev thauj khoom.

03 Kev Xeem

1) Kev ntsuas ntawm rwb thaiv tsev

2) Kev ntsuas qhov sib piv ntawm qhov hluav taws xob thiab xyuas cov theem hloov chaw

3) Kev ntsuas tam sim no transformer

4) Kev ntsuas ntawm winding kuj

5) Kev ntsuas tsis muaj-load poob thiab Tsis muaj-load tam sim no

6) Kev ntsuas ntawm luv Circuit Court impedance thiab load poob

7) Ntawm -load kais hloov pauv- kev sim ua haujlwm

8) Lightning impulse test

9) Applied voltage test

10) Induced voltage withstand test nrog pd ntsuas

11) Kev ntsuas kub nce

12) Seal test

13) Rwb thaiv tsev roj kuaj

04 Packing thiab Shipping

05 Site thiab Summary

Ua tsaug rau koj txaus siab rau peb lub zog transformers! Nrog rau kev ua tau zoo tshwj xeeb, txhim khu kev qha zoo, thiab muaj peev xwm hloov hluav taws xob muaj txiaj ntsig, peb cov transformers muab cov kev daws teeb meem zoo rau koj txoj haujlwm ua lag luam thiab engineering. Txawm hais tias koj tab tom nrhiav kev ua haujlwm ruaj khov lossis kev siv hluav taws xob, peb nyob ntawm no kom tau raws li koj xav tau. Peb tos ntsoov yuav koom tes nrog koj kom ua tiav lub neej yav tom ntej ua ke! Thov koj xav tiv tauj peb kom paub ntau ntxiv lossis kev pab.